PICStep not working!

Hi To All,

I have had my CNC stored away for about a year and a half. I took it back out to continue working and found two axises not working. After doing all the testing of boards and circuitry, I came to the conclusion that new PIC16F628A were needed.

Here's the current scenario:

1. Of the 3 original chips, 1 still works. The other 2 dead.
2. When I put the working chip into the other motor drivers the drivers function as they should.
3. Purchased 3 new chips, burned them and verified the data.
4. Placed new chips into the drivers and they don't step properly.
5. Removed new chip from one driver and put the working old chip into driver, still works as it should.

I never seen anything like this in my life. Does anyone out there have a clue what's going on here or have another procedure to detect problem?

Re: PICStep not working!

You have read the code and copied it? What about the eerom and configuration bits?
It is quite possible the code loads preset information from eerom, and certainly the configuration bits need to be the same, else chip will function differently.

Super X3. 3600rpm. Sheridan 6"x24" Lathe + more. Three ways to fix things: The right way, the other way, and maybe your way, which is possibly a faster wrong way.

Re: PICStep not working!

Hi,

If anyone can shed some light on the subject of chip programming, I might be able to solve my problem. After burning the chips again, using the Ozipicer programmer hardware and Oshunsoft programming software, I was able to burn a chip successfully. I need help programming it correctly. I now have motors that respond when toggled by vibrating with out completing a step in either direction. So my thinking is that I'm not burning the chip with the correct settings. Can someone help.?